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Blu ray is a digital optical disc data storage format. It was designed to supersede the DVD format, in that it is capable of storing high-definition video resolution (1080p). The plastic disc is 120 mm in diameter and 1.2 mm thick, the same size as DVDs and CDs.[4] Conventional (pre-BD-XL) Blu-ray Discs contain 25 GB per layer, with dual layer discs (50 GB) being the industry standard for feature-length video discs. Triple layer discs (100 GB) and quadruple layers (128 GB) are available for BD-XLre-writer drives.
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Blu-ray is an optical disc format designed to display high definition video and store large amounts of data. Blu-ray is the successor to DVD. The standard was developed collaboratively by Hitachi, LG, Matsushita, Pioneer, Philips, Samsung, Sharp, Sony, and Thomson.The rewritable Blu-ray disc, with a data transfer rate of 36Mbps, can hold up to 27GB of data on a single-sided single layer disc, which amounts to about 12 hours of standard video or more than 2 hours of high-definition video.Blu-ray is the next-generation digital video disc. It can record, store and play back high-definition video and digital audio, as well as computer data.
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